"Proper" airflow and "exhaust" are absolutely" "essential" to "preserving" the "specified" level of cleanliness" within a "sterile area". The "configuration" must carefully" manage" "contaminants" by "continuously" https://cleanroomventilationguid872944.buscawiki.com/2449578/airflow_and_ventilation_the_foundation_of_cleanroom_purity